Crowdly

while loop

none of them

What are loops used for?

to choose between different paths in the code

to compare two numbers

to calculate the remainder of an integer division

to repeatedly execute a piece of code

What can a conditional statement be used for?

to decide if a block is executed or skipped

to execute the subsequent block more than once

to choose between different paths in the code

to combine single statements into a block

to execute multiple blocks in parallel

What is the output of the following program?

a = 10
b = 10
if a <= b:
    print("x")
elif a == b:
    print("y")
else:
    print("z")

this program will not output anything

x
y

What is the output of the following program?

a = 10
b = 12
if a > b:
    print("fizz")
else:
    print("buzz")

fizz

buzzfizz

fizzbuzz

this program will not output anything

buzz

Which of the following statements about blocks are correct?

a block must always consist of at least two statements

a conditional statement specifies what a block is

each line in a program is called a block

a block can be created by indenting one or more statements

a block specifies a set of statements that belong together

What is a statement?

a single instruction to the computer

an indented block

an empty branch or path

a different name for a branch or path

a sequence of instructions to the computer

How would you print the value of the variable “x”?

x print

x = print

print(x)

print == x

print x

How would you ask the user to enter a value that shall be stored in the variable “x”?

input "Please enter a value" == x

input("Please enter a value")

x = input("Please enter a value")

x == input("Please enter a value")

x += input("Please enter a value")

What is the result of the following expression?

1 in [1, 2, 3, 4, 5]

True

False